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An Optimal Algorithm Based on Kinetic-Molecular Theory with Artificial Memory to Solving Economic Dispatch Problem


Affiliations
1 College of Information and Engineering, Xiangtan University, Xiangtan - 411105, China
2 College of Electric and Information Engineering, Hunan University, Changsha - 410000, China
 

Economic dispatch (ED) problem exhibits highly nonlinear characteristics, such as prohibited operating zone, ramp rate limits and non-smooth property. Due to its nonlinear characteristics, it is hard to achieve the expected solution by classical methods. To overcome the challenging difficulty, an improved optimization algorithm based on kinetic-molecular theory (KMTOA) was proposed to solve the ED problem in this article. Memory principle is employed into the improved algorithm. By accepting strengthened or weakened stimulus strength, the memory is divided into four states; instant-term, short-term, long-term and forgotten states to update the memory value iteratively. In this way, more and more elites appear in the long-term memory library. Simultaneously, the improved KMTOA, according to the elite population-based guide on the other population, enhances the search ability and avoids the premature convergence which usually suffered in traditional KMTOA. The designs are able to enhance the performance of KMTOA, which has been demonstrated on 12 benchmark functions. To validate the proposed algorithm, we also use three different systems to demonstrate its efficiency and feasibility in solving the ED problem. The experimental results show that the improved KMTOA can achieve higher quality solutions in ED problems.

Keywords

Artificial Memory, Benchmark Function, Economic Dispatch, KMTOA.
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Abstract Views: 266

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  • An Optimal Algorithm Based on Kinetic-Molecular Theory with Artificial Memory to Solving Economic Dispatch Problem

Abstract Views: 266  |  PDF Views: 75

Authors

Chaodong Fan
College of Information and Engineering, Xiangtan University, Xiangtan - 411105, China
Jie Li
College of Information and Engineering, Xiangtan University, Xiangtan - 411105, China
Lingzhi Yi
College of Information and Engineering, Xiangtan University, Xiangtan - 411105, China
Leyi Xiao
College of Electric and Information Engineering, Hunan University, Changsha - 410000, China
Biaoming Zhu
College of Information and Engineering, Xiangtan University, Xiangtan - 411105, China
Ke Ren
College of Information and Engineering, Xiangtan University, Xiangtan - 411105, China

Abstract


Economic dispatch (ED) problem exhibits highly nonlinear characteristics, such as prohibited operating zone, ramp rate limits and non-smooth property. Due to its nonlinear characteristics, it is hard to achieve the expected solution by classical methods. To overcome the challenging difficulty, an improved optimization algorithm based on kinetic-molecular theory (KMTOA) was proposed to solve the ED problem in this article. Memory principle is employed into the improved algorithm. By accepting strengthened or weakened stimulus strength, the memory is divided into four states; instant-term, short-term, long-term and forgotten states to update the memory value iteratively. In this way, more and more elites appear in the long-term memory library. Simultaneously, the improved KMTOA, according to the elite population-based guide on the other population, enhances the search ability and avoids the premature convergence which usually suffered in traditional KMTOA. The designs are able to enhance the performance of KMTOA, which has been demonstrated on 12 benchmark functions. To validate the proposed algorithm, we also use three different systems to demonstrate its efficiency and feasibility in solving the ED problem. The experimental results show that the improved KMTOA can achieve higher quality solutions in ED problems.

Keywords


Artificial Memory, Benchmark Function, Economic Dispatch, KMTOA.

References





DOI: https://doi.org/10.18520/cs%2Fv115%2Fi3%2F454-464